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AIMS Investment Company Estimating Population Values.

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The AIMS Investment Company is interested in estimating the average number of mutual funds its customers have in their portfolios.
a. based on the sample data, construct a 90% confidence interval estimate for the mean number of mutual funds for all their customers. Interpret this interval.

b. Suppose that the interval estimate that you computed in part a has a margin of error that is greater than Aims management wants. Discuss what options are open to Aims. What are the advantages and disadvantages of each option?

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Estimating population values are given for AIMS Investment Company. A 90% confidence interval is constructed.

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